Machine for crushing and pulverizing ores



(No Model.) 2 Shets-Sheet 1 J. U. WISWBLL.

MACHINE FOR GRUSHING AND PULVERIZING GEES.

No. 563,702. Patented July 7, 1896.

(No Model.) 2 Sheets-Sheet 2. J. C. WISWELL. MAGHINB POE GRUSHING ANDPULVERIZING ORES.

No. 563,702. Patented July 7, 1896.

UNITED STATES PATENT Fries.

JACOB C. \VIS\VELL, OF MEDFORD, MASSACHUSETTS, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, TO HENRY B. IVELLS AND SOLOMON EATON, OF BOSTON,WINGATE P. SARGENT, OF MELROSE, AND HENRY G. DIL- LAXVAY AND HENRY B.BROIVN, OF QUINCY, MASSACHUSETTS.

MACHINE FOR CRUSHING AND PULVERIZING ORES.

SPECIFICATION forming part of Letters Patent No. 563,702, dated July '7,1896.

Application filed October 24, 1895. Serial No. 566,702. (No model.)

To all whont it may concern:

Be it known that I, JACOB O. WIswELL, of Nest Medford, in the county ofMiddlesex and Commonwealth of Massachusetts, have invented a new anduseful Machine for Cru shing and Pulverizing Ores, of which thefollowing is a specification.

My invention relates to mining machinery, and has for its object toproduce a machine I0 which combines both a crusher and a pulverizerdesigned for the reduction of auriferous gangues, the liberation andrecovery of the precious metals, and more especially the recovery of thefine float-gold.

In the accompanying drawings, forming part of this specification, Figure1 is a longitudinal cross-section of the machine, and

2 a top plan reduced.

The pan a constitutes the bed of the ma- 2o chine and has the flange aand a curb a secured upon the flange a, to confine the requisite amountof pulp. In the bottom of the pan a is the faucet a and spout o to carryoff the amalgam when desired. .Dri vingshaft 1) has a bearing in thesleeve 12, secured to pan to, and carries a gear 21 splined on the shaftb, so that the gear can move freely endwise of the shaft. Gear 13 drivesgears c, which are secured to the collars c of the hol- 0 low rolls 0.These rolls are carried upon spindles c threaded at their lower portionsto engage threaded holes in the top of the rolls and travel slightlyabove the surface of pan 0,, supported thus by balls g, upon which 3 5rest the disks h, secured to the lower extremities of the spindles c bynuts and washers. A cone-shaped wedge is surrounds but does not touchshaft Z2, and resting upon the upper inclined surfaces of rolls c formsa support upon which rests gear 22 The upper portions of spindles 0 havethe sleeve-washers c and embraced by the arms m, whose inner portionspass through slots in the ring 0 and are connected to springs 0,

secured to the inner surface of ring 0. Squared heads on the spindles 0provide for adjustment of spindles c endwise to raise or lower the rolls0. The lower edges of rolls a have the flanges a, supporting the shoes csecured about the outer peripheries of the rolls, and which act againstthe inner surface of ring 17.

The operation of the machine will now be understood. Power being appliedto shaft 1), rolls 0 rotate on their own axes and by their contactoutwardly with rim p are caused to travel, thus rotating in a circularpath about the pan a, bearing inwardly upon the wedgecone 7t. VS ear ofthe shoes 0 and the constant widening of the circle in which the rollstravel will be compensated for by the wedge moving downwardautomatically and by the springs o forcing spindles 0 outwardly.

This mill does not rub or pound the ores and therefore makes no slimes.It serves three purposescruslies by means of the rotating rolls whichoperate on a horizontal plane, being thrust rigidly against the verticalsides of the pan. This work is all done above the fine pulverizing whichis effected upon the bottom by means of the iron balls carrying thegreat weight of the structures above them, this weight being veryadvantageous in amalgamation. The wearing-surfaces will be true as longas they last, and the mill can be easily conveyed from place to place.

Having now fully described my said invention, whatI desire to secure byLetters Patent, and therefore claim, is

1. In an ore crushing and pulverizing machine a pan; balls resting uponthe pan; hollow inverted rolls supported upon the balls and means forrotating the rolls on their own axes and also causing them to travelabout the pan in a circular path simultaneously, as described.

2. In a machine of the character described, a pan; balls resting uponthe pan; hollow in verted rolls supported upon the balls; a wedge-conebearing upon the upper surfaces of the rolls, and means for rotating theballs and rolls, as and for the purposes set forth.

3. In a machine of the character described, a pan; balls resting uponthe pan; hollow inverted rolls supported by the balls and means forrevolving the balls within the rolls, ro tating the rolls on their ownaxes and cansing the rolls and balls to travel about the gear b ring 0and elastic connections bepan all simultaneously, as set forth. tweenthe ring and spindles c all as and for 4. In combination pan a: halls gresting the purposes set forth. thereon; disks h resting on the balls,spinv 5 dles c carrying disks h; rolls 0 carried by Witnesses:

spindles c gears 012 driving rolls a; wedge JONATHAN CILLEY, cone 7:bearing upon rolls 0 and supporting D. P. OARNEY.

JACOB 'o. WIsWELL.

